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IE 3.0T B8/B8.5 S4 Cold Air Intake
IE 3.0T B8/B8.5 S4 Cold Air Intake
IE 3.0T B8/B8.5 S4 Cold Air Intake
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IE 3.0T B8/B8.5 S4 Cold Air Intake

Marsoni M251S
Sale price$220.00
Pay 4 payments of $55.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
IE 3.0T B8/B8.5 S4 Cold Air IntakeUPGRADE POWER & SOUND Force feed your Audi S4 or S5 3. 0T supercharger direct high flow rammed air with and IE Cold Air Intake! The perfect addition to your engine bay, instantly adds horsepower, torque, snappy throttle response, and an aggressive supercharger sound. Typical peak gains from our CAI are roughly 15 25+ Horsepower and Torque on a tuned car. LEADING FEATURES Gain of 15 20 horsepower and torque Optional carbon fiber lid for an upgraded
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 725 reviews
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Product Reviews
J
Verified Purchase
Jeff Pesos
Charlottesville, US
★★★★★ 4
Works like a supplement
If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
M
Verified Purchase
Michael Sliwinski
Omaha, US
★★★★★ 5
Used to clean an O2 sensor
Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
M
Verified Purchase
Marvin Burton
Waukegan, US
★★★★★ 3
Nothing
Didn’t work for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
M
Verified Purchase
mechanic
Chelsea, US
★★★★★ 1
It doesn’t work
This don’t work at all. I do not recommend. I use all four containers, and the light is still on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
2014 Ford Edge SEL
Worked like a charm! Used as directed, it cleared the P0420 & P0430 codes that were coming up on my OBD II scanner after a complete engine swap. Definitely recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

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